#include<iostream>

using namespace std;

const int N = 1010;

int n, m, q;
int a[N][N], s[N][N];

int main(){
    cin >> n >> m >> q;
    for(int i = 1; i <= n; i ++ )
      for(int j = 1; j <= m; j ++ )
        cin >> a[i][j];
    for(int i = 1; i <= n; i ++ )
      for(int j = 1; j <= m; j ++ )
        s[i][j] = s[i - 1][j] + s[i][j - 1] - s[i - 1][j - 1] + a[i][j];
    while(q --){
        int x1, y1, x2, y2;
        cin >> x1 >> y1 >> x2 >> y2;
        printf("%d\n",s[x2][y2] - s[x1 - 1][y2] - s[x2][y1 - 1] + s[x1 - 1][y1 - 1] );
    }
    return 0;
}